Augmented reality head-up display for overlaying a notification symbol over a visually imperceptible object

ABSTRACT

An augmented reality head-up display system for displaying graphics upon a windscreen of a vehicle includes a controller in electronic communication with one or more non-visual object detection sensors, one or more image-capturing devices, and a graphic projection device. The controller executes instructions to receive a plurality of detection points that indicate a presence of an object from the one or more non-visual object detection sensors. The controller executes instructions to compare the plurality of detection points with the image data of the environment surrounding the vehicle to identify a visually imperceptible object located in the environment. In response to identifying the visually imperceptible object, the controller determines a notification symbol that signifies the visually imperceptible object. The notification symbol is overlaid at a position upon the windscreen where the visually imperceptible object would normally be visible.

INTRODUCTION

The present disclosure relates to an augmented reality head-up displayfor generating a notification symbol upon the windscreen of a vehicle.The notification symbol is overlaid at a position upon the windscreenwhere the visually imperceptible object would normally be visible.

Augmented reality (AR) involves enhancing the real world with virtualelements that are shown in three-dimensional space and that permitreal-time interaction with users. A head-up display (HUD) showsinformation such as, for example, vehicle speed and navigationalinstructions, directly onto a windscreen of a vehicle, within thedriver's forward field of view. Accordingly, the head-up displayprovides drivers with information without looking away from the road.One possible implementation for augmented reality is an augmentedreality head-up display (AR-HUD) for a vehicle. By overlaying images onthe windscreen, AR-HUDs enhance a driver's view of the environmentoutside the vehicle, creating a greater sense of environmentalawareness.

However, while current augmented reality head-up displays achieve theirintended purpose, there is a need in the art for an improved approachfor providing information to vehicle occupants.

SUMMARY

According to several aspects, an augmented reality head-up displaysystem for displaying graphics upon a windscreen of a vehicle isdisclosed. The augmented reality head-up display system includes one ormore non-visual object detection sensors to detect objects in anenvironment surrounding the vehicle, and one or more image-capturingdevices that capture image data of the environment surrounding thevehicle, and a graphic projection device for generating images upon thewindscreen of the vehicle. The system also includes a controller inelectronic communication with the one or more non-visual objectdetection sensors, the one or more image-capturing devices, and thegraphic projection device, wherein the controller executes instructionsto receive a plurality of detection points that indicate a presence ofan object from the one or more non-visual object detection sensors andthe image data from the one or more non-visual object detection sensors.The controller compares the plurality of detection points with the imagedata of the environment surrounding the vehicle to identify a visuallyimperceptible object located in the environment. In response toidentifying the visually imperceptible object, the controller determinesa notification symbol that signifies the visually imperceptible object.Finally, the controller instructs the graphic projection device togenerate the notification symbol upon the windscreen of the vehicle,wherein the notification symbol is overlaid at a position upon thewindscreen where the visually imperceptible object would normally bevisible.

In another aspect, the controller executes instructions to determine arate of approach towards the visually imperceptible object by thevehicle and adjusts at least one visual parameter of the notificationsymbol based on the rate of approach towards the visually imperceptibleobject by the vehicle.

In yet another aspect, the visual parameter is an overall size of thenotification symbol, and where the overall size of the notificationsymbol increases as the vehicle travels towards the visuallyimperceptible object and the overall size of the notification symboldecreases as the vehicle travels away from the visually imperceptibleobject.

In an aspect, the visual parameter is a color of the notificationsymbol.

In another aspect, the controller executes instructions to receiveperception data indicative of human vision relative to camera vision,calculate a driver's field of view based on the perception data, andidentify the visually imperceptible object based on the perception data.

In yet another aspect, the perception data includes one or more of thefollowing: ambient lighting conditions, sun position, headlamp coverage,and weather input.

In an aspect, identifying the visually imperceptible object isdetermined based on driver vision capability.

In another aspect, the one or more non-visual object detection sensorsinclude one or more of the following: a radar, LiDAR, and one or moreinfrared sensors.

In yet another aspect, the controller identifies the visuallyimperceptible object by determining a luminance contrast ratio betweenthe plurality of detection points and the image data of the environmentsurrounding the vehicle.

In an aspect, the controller instructs the graphic projection device ofthe augmented reality head-up display system to project cluster contentinformation within a near-field image plane of the windscreen.

In another aspect, information regarding the notification symboldisplayed within the near-field image plane.

In yet another aspect, the controller instructs the graphic projectiondevice to project the notification symbol within a far-field image planeof the windscreen.

In an aspect, the notification symbol is one of the following: a cautionsymbol, a vehicle icon, an animal icon, and a pedestrian icon.

In another aspect, the visually imperceptible object is one of thefollowing: roadway signage, roadway markings, another vehicle, apedestrian, a bicyclist, a traffic incident, and road conditions thatrequire attention.

In an aspect, a method for displaying graphics upon a windscreen of avehicle. The method includes receiving, by a controller, a plurality ofdetection points that indicate a presence of an object from one or morenon-visual object detection sensors and image data from one or moreimage-capturing devices. The method includes comparing the plurality ofdetection points with the image data of the environment surrounding thevehicle to identify a visually imperceptible object located in theenvironment. In response to identifying the visually imperceptibleobject, the method includes determining a notification symbol thatsignifies the visually imperceptible object. Finally, the methodincludes instructing, by the controller, a graphic projection device togenerate the notification symbol upon the windscreen of the vehicle,where the notification symbol is overlaid at a position upon thewindscreen where the visually imperceptible object would normally bevisible.

In another aspect, the method includes determining a rate of approachtowards the visually imperceptible object by the vehicle and adjustingat least one visual parameter of the notification symbol based on therate of approach towards the visually imperceptible object by thevehicle.

In yet another aspect, the method includes receiving perception dataindicative of human vision relative to camera vision, calculating adriver's field of view based on the perception data, and identifying thevisually imperceptible object based on the perception data.

In an aspect, an augmented reality head-up display system for displayinggraphics upon a windscreen of a vehicle. The augmented reality head-updisplay system includes one or more non-visual object detection sensorsto detect objects in an environment surrounding the vehicle, one or moreimage-capturing devices that capture image data of the environmentsurrounding the vehicle, a graphic projection device for generatingimages upon the windscreen of the vehicle, and a controller inelectronic communication with the one or more non-visual objectdetection sensors, the one or more image-capturing devices, and thegraphic projection device. The controller executes instructions toreceive a plurality of detection points that indicate a presence of anobject from the one or more non-visual object detection sensors. Thecontroller compares the plurality of detection points with the imagedata of the environment surrounding the vehicle to identify a visuallyimperceptible object located in the environment. In response toidentifying the visually imperceptible object, the controller determinesa notification symbol that signifies the visually imperceptible object.The controller instructs the graphic projection device to generate thenotification symbol upon the windscreen of the vehicle, wherein thenotification symbol is overlaid at a position upon the windscreen wherethe visually imperceptible object would normally be visible. Thecontroller determines a rate of approach towards the visuallyimperceptible object by the vehicle and adjusts at least one visualparameter of the notification symbol based on the rate of approachtowards the visually imperceptible object by the vehicle.

In an aspect, the visual parameter is an overall size of thenotification symbol, and the overall size of the notification symbolincreases as the vehicle travels towards the visually imperceptibleobject and the overall size of the notification symbol decreases as thevehicle travels away from the visually imperceptible object.

In an aspect, the controller executes instructions to receive perceptiondata indicative of human vision relative to camera vision, calculate adriver's field of view based on the perception data, and identify thevisually imperceptible object based on the perception data.

Further areas of applicability will become apparent from the descriptionprovided herein. It should be understood that the description andspecific examples are intended for purposes of illustration only and arenot intended to limit the scope of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings described herein are for illustration purposes only and arenot intended to limit the scope of the present disclosure in any way.

FIG. 1 is a schematic diagram of the disclosed augmented reality head-updisplay system for displaying graphics upon a windscreen of a vehicle,according to an exemplary embodiment

FIG. 2 illustrates an interior view of the windscreen illustrating anotification symbol overlaid at a position on the windscreen where avisually imperceptible object is located, according to an exemplaryembodiment;

FIGS. 3A-3C illustrate the notification symbol shown in FIG. 2increasing in overall size, according to an exemplary embodiment;

FIGS. 4A-4C illustrate various types of notification symbols, accordingto an exemplary embodiment; and

FIG. 5 is a process flow diagram illustrating a method for displayinggraphics upon the windscreen of the vehicle by the augmented realityhead-up display system, according to an exemplary embodiment.

DETAILED DESCRIPTION

The following description is merely exemplary in nature and is notintended to limit the present disclosure, application, or uses.

Referring to FIG. 1 , an exemplary augmented reality head-up displaysystem 10 for displaying graphics upon a windscreen 12 of a vehicle 14is illustrated. The augmented reality head-up display system 10 includesone or more controllers 20 in electronic communication with one or moreimage-capturing devices 22, one or more non-visual object detectionsensors 24, a graphic projection device 26, and an eye location system28. The image-capturing devices 22 may be cameras that obtain periodicor sequential images. The one or more non-visual object detectionsensors 24 are configured to detect a position, velocity, and directionof travel of objects in an environment 40 surrounding the vehicle 14. Inthe example as shown in FIG. 1 , the one or more non-visual objectdetection sensors 24 include a radar 30, LiDAR 32, and one or moreinfrared sensors 34, however, it is to be appreciated that other sensorsthat employ non-visual techniques to detect the presence of objects maybe used as well. Moreover, information from other sensors may be used aswell. The graphic projection device 26 is configured to generate imagesupon the windscreen 12 of the vehicle 14 and includes a projectiondevice for creating an excitation light for projecting images. The eyelocation system 28 includes one or more sensors for determining thelocation of a head of the driver of the vehicle 14 as well as theorientation or gaze location of the driver's eyes. It is to beappreciated that the vehicle 14 may be any type of vehicle such as, butnot limited to, a sedan, truck, sport utility vehicle, van, or motorhome. It is also to be appreciated that the vehicle 14 is not limited toan automobile, and may be any other type of land vehicle, marinevehicle, or air vehicle. In an embodiment, the vehicle 14 is anautonomous or semi-autonomous vehicle. However, it is to be appreciatedthat a manually driven vehicle may be used as well.

The one or more controllers 20 may also be in electronic communicationwith a global positioning system (GPS) 41, one or more vehicle systems42, one or more road databases 44, and one or more external networks 46.The one or more vehicle systems 42 include, but are not limited to, adriver monitoring system (DMS) and an automated driving system. Thevehicle 14 may wirelessly connect to the one or more external networks46. Some examples of external networks 46 include, but are not limitedto, cellular networks, dedicated short-range communications (DSRC)networks, and vehicle-to-infrastructure (V2X) networks.

FIG. 2 is an exemplary interior view of the windscreen 12, where theenvironment 40 surrounding the vehicle 14 is visible through thewindscreen 12. It is to be appreciated that the images generated by thegraphic projection module 26 are projected as light upon the windscreen12, where the light is reflected off the windscreen 12 and is directedto a driver of the vehicle 14. Thus, the images generated by the graphicprojection module 26 appear to be in front of the vehicle 12, and beyondthe windscreen 12, when viewed by a driver. Referring to both FIGS. 1and 2 , the augmented reality head-up display system 10 identifies avisually imperceptible object located in the environment 40 surroundingthe vehicle 14. The visually imperceptible object is any type ofincident or object situated along a roadway 60 that the vehicle 14travels along. Some examples of visually imperceptible objects include,but are not limited to, roadway signage and markings, another vehicle, apedestrian, a bicyclist, a traffic incident, or road conditions thatrequire attention. Some examples of road conditions that requireattention include, but are not limited to, icy or slippery roadsurfaces, potholes, and debris obstructing the roadway 60. It is to beappreciated that the visually imperceptible object is not visible to adriver of the vehicle 14 because of low-visibility conditions thatreduce the driver's ability to view objects on the roadway 60. Someexamples of low-visibility conditions include, but are not limited to,snow, rain, fog, nighttime conditions, and low-light conditions.

As explained below, in response to identifying the visuallyimperceptible object, the augmented reality head-up display system 10determines a notification symbol 36 that signifies the visuallyimperceptible object. As seen in FIG. 2 , the notification symbol 36 isgenerated upon the windscreen 12 of the vehicle 14 and is overlaid at aposition 38 upon the windscreen 12 where the visually imperceptibleobject would normally be visible by the driver. In other words, if thelow-visibility conditions were not present, then the driver would beable to view the visually imperceptible object. For example, if the fogwere to clear, then the driver of the vehicle 14 would be able to view aroadway sign that is otherwise visually imperceptible. In the example asshown in FIG. 2 , the notification symbol 36 is a caution symbol,however, it is to be appreciated that other types of symbols may be usedas well and are illustrated in FIGS. 4A-4B. As also explained below, theaugmented reality head-up display system 10 determines a rate ofapproach towards the visually imperceptible object by the vehicle 14 andadjusts at least one visual parameter of the notification symbol 36based on the rate of approach towards the vehicle 14. For example, asseen in FIGS. 3A-3C, in an embodiment the visual parameter of thenotification symbol 36 is an overall size, and as the vehicle 14approaches the visually imperceptible object, the overall size of thenotification symbol 36 increases.

Referring to FIGS. 1 and 2 , the windscreen 12 includes a first,near-field image plane 50 and a second, far-field image plane 52,however, it is to be appreciated that more than two image planes may beused as well. The controller 20 instructs the graphic projection device26 of the augmented reality head-up display system 10 to project clustercontent information 54 upon the windscreen 12 within the near-fieldimage plane 50. The cluster content information 54 informs the driver ofthe vehicle 14 of driving conditions such as, but not limited to,vehicle speed, speed limit, gear position, fuel level, current position,and navigational instructions. In the example as shown in FIG. 2 , thecluster content information 54 includes vehicle speed and navigationaldirections. In an embodiment, the augmented reality head-up displaysystem 10 projects information regarding the notification symbol 36 uponthe windscreen 12 within the near-field image plane 50. Some examples ofinformation regarding the notification symbol 36 include a descriptionof the visually imperceptible object (i.e., is the visuallyimperceptible object debris on the roadway 60, another vehicle, a roadsign, etc.) and a distance to the visually imperceptible object from thevehicle 14.

The controller 20 instructs the graphic projection device 26 to projectthe notification symbol 36 upon the windscreen 12 within the far-fieldimage plane 52, where the notification symbol 36 is overlaid at aposition 38 upon the windscreen 12 where the visually imperceptibleobject would normally be visible. The far-field image plane 52 containsimages overlaid upon the roadway 60 that is visible through thewindscreen 12. In the embodiment as shown in FIG. 2 , the far-fieldimage plane 52 only covers a portion of the entire plane of thewindscreen 12, however, it is to be appreciated that in anotherimplementation the far-field image plane 52 may cover the entire planeof the windscreen 12 that is not occupied by the near-field image plane50. Moreover, although FIG. 2 illustrates the far-field image plane 52only spanning across a portion of the lanes 62 that are part of theroadway 60, in embodiments the far-field image plane 52 spans acrosseach lane 62 across the roadway 60.

The notification symbol 36 includes any type of graphic image thatprovides an alert to direct the attention of the driver of the vehicle14 towards the position 38 of the visually imperceptible object. In theexample as shown in FIG. 2 , the notification symbol 36 is a cautionsymbol, however, it is to be appreciated that other types of symbols maybe used as well. For example, as seen in FIG. 4A, the notificationsymbol 36 includes a vehicle icon to alert the driver to a vehicle thatis visually imperceptible. In the embodiment as shown in FIG. 4B, thenotification symbol 36 includes an animal icon to alert the driver towildlife that are visually imperceptible. In the embodiment as shown inFIG. 4C, the notification symbol 36 includes a pedestrian icon to alertthe driver to a pedestrian that is visually imperceptible. Otherexamples of symbols that may be used as the notification symbol 36include, but are not limited to, traffic sign icons, slippery roadwayicons, traffic lights, a stopped vehicle, pedestrians, animals, crosstraffic, and the edge of the road. In embodiments, the notificationsymbol 36 may be animated as well to draw attention to the driver's eye.For example, an alert may be transient to draw the driver's attention toa particular region in the visual field.

Referring back to FIG. 1 , the image-capturing devices 22 obtain imagedata of the environment 40 surrounding the vehicle 14. The one or morenon-visual object detection sensors 24 obtain data in the form ofdetection points that indicate a presence of an object within theenvironment 40 of the vehicle 14. The controller 20 receives theplurality of detection points that indicate a presence of the object andthe image data. The controller 20 compares the plurality of detectionpoints with the image data to identify the visually imperceptibleobject.

In embodiments, the controller 20 identifies the visually imperceptibleobject based on the driver's vision capabilities. The driver's visioncapabilities are entered manually or, in the alternative, may beinferred based on age. In another embodiment, the controller 20identifies the visually imperceptible object based on driver perceptiondata received from the eye location system 28, where the driverperception data includes the location of a head of the driver and theorientation or gaze location of the driver's eyes. It is to beappreciated that the driver eye and head positions are at a differentlocation than the image-capturing devices 22, and therefore there may beareas in the environment 40 that the driver may view that are notcaptured by the image-capturing devices 22, and vice versa. Furthermore,the different locations between the driver eye and the head position maybe calculated as well.

In an embodiment, the controller 20 identifies the visuallyimperceptible object by first determining a luminance contrast ratiobetween the plurality of detection points with the image data of theenvironment 40, and then compares the luminance contrast ratio with acontrast threshold ratio. Specifically, the image data captured from theone or more image-capturing devices 22 includes data indicating bothobject luminescence and background luminescence, where the luminescencecontrast ratio is determined based on the object and the backgroundluminescence. In response to determining the luminance contrast ratio isgreater than or equal to the contrast threshold ratio, the controller 20identifies the object being detected as the visually imperceptibleobject.

In response to identifying the visually imperceptible object, thecontroller 20 determines the notification symbol 36 (FIG. 2 ) thatsignifies the visually imperceptible object. The controller 20 theninstructs the graphic projection device 26 to generate the notificationsymbol 36 upon the windscreen 12 of the vehicle 14. As seen in FIG. 2 ,the notification symbol 36 is overlaid at the position 38 of thevisually imperceptible object. It is to be appreciated that thecontroller 20 calculates a type of symbol, the size, the shape, and thecolor of the notification symbol 36 based on the driver eye position, alocation of the vehicle 14, and data regarding the environment 40 suchas, but not limited to, data from an inclinometer, vehicle speed,roadway curvature, and steering angle.

In embodiments, the controller 20 determines a rate of approach towardsthe visually imperceptible object by the vehicle 14 based on one or moreinputs from the one or more image-capturing devices 22, the one or morenon-visual object detection sensors 24, the one or more vehicle systems42, the one or more road databases 44, and the one or more externalnetworks 46. Referring to FIGS. 1 and 3A-3B, the controller adjusts atleast one visual parameter of the notification symbol 36 based on therate of approach towards the visually imperceptible object. In theembodiment as shown in FIGS. 3A-3C, the visual parameter is an overallsize of the notification symbol, where the overall size of thenotification symbol 36 increases as the vehicle 14 travels towards thevisually imperceptible object and the overall size of the notificationsymbol 36 decreases as the vehicle 14 travels away from the visuallyimperceptible object. In another embodiment, the visual parameter is acolor of the notification symbol, where the color indicates when thevehicle 14 is too close to the visually imperceptible object. Forexample, the color of the notification symbol may start as yellow, turnto orange as the vehicle 14 approaches the visually impermissibleobject, and eventually turns to red. In still another embodiment, thevisual parameter is an animation of the notification symbol 36. Forexample, the visual parameter may be size, where the size of the graphicincreases or decreases to capture the attention of the driver.

Referring back to FIG. 1 , the controller 20 receives perception dataindicative of human vision relative to camera vision from the one ormore image-capturing devices 22, the one or more non-visual objectdetection sensors 24, the one or more vehicle systems 42, the one ormore road databases 44, and the one or more external networks 46. Inembodiments, the perception includes, but is not limited to, ambientlighting conditions, sun position, headlamp coverage, and weather input.The controller 20 calculates a driver's field of view based on theperception data, and further identifies the visually imperceptibleobject based on the perception data.

FIG. 5 is a process flow diagram illustrating a method 200 fordisplaying the notification symbol 36 upon the windscreen 12 of thevehicle 14 by the augmented reality head-up display system 10. Referringto FIGS. 1, 2, and 5 , the method 200 may begin at block 202. In block202, the controller 20 receives the plurality of detection points thatindicate a presence of an object from the one or more non-visual objectdetection sensors 24 and the image data from one or more image-capturingdevices 22. The method 200 may then proceed to block 204.

In block 204, the controller 20 compares the plurality of detectionpoints with the image data of the environment 40 surrounding the vehicle14 to identify the visually imperceptible object. As mentioned above, inan embodiment, the visually imperceptible object may be identified basedby determining a luminance contrast ratio between the plurality ofdetection points and the image data. The method 200 may then proceed toblock 206.

In block 206, in response to identifying the visually imperceptibleobject, the controller 20 determines the notification symbol 36 thatsignifies the visually imperceptible object. The method 200 may thenproceed to block 208.

In block 208, the controller 20 instructs the graphic projection device26 to generate the notification symbol 36 upon the windscreen 12 of thevehicle 14. As seen in FIG. 2 , the notification symbol 36 is overlaidat a position 38 upon the windscreen 12 where the visually imperceptibleobject would normally be visible. The method 200 may then terminate.

Referring generally to the figures, the disclosed augmented realityhead-up display provides various technical effects and benefits.Specifically, the disclosed augmented reality head-up display generatesa notification symbol upon the windscreen of a vehicle to alert thedriver of a visually imperceptible object. Therefore, the augmentedreality head-up display provides enhanced situational awareness ofroadway objects that are not evident to a driver during low-visibilityconditions. Moreover, as the vehicle continues to travel towards thevisually imperceptible object, the size and color of the notificationsymbol may change to assist the driver in determining if the visuallyimperceptible object is stationary, traveling towards the vehicle, oraway from the vehicle.

The controllers may refer to, or be part of an electronic circuit, acombinational logic circuit, a field programmable gate array (FPGA), aprocessor (shared, dedicated, or group) that executes code, or acombination of some or all of the above, such as in a system-on-chip.Additionally, the controllers may be microprocessor-based such as acomputer having a at least one processor, memory (RAM and/or ROM), andassociated input and output buses. The processor may operate under thecontrol of an operating system that resides in memory. The operatingsystem may manage computer resources so that computer program codeembodied as one or more computer software applications, such as anapplication residing in memory, may have instructions executed by theprocessor. In an alternative embodiment, the processor may execute theapplication directly, in which case the operating system may be omitted.

The description of the present disclosure is merely exemplary in natureand variations that do not depart from the gist of the presentdisclosure are intended to be within the scope of the presentdisclosure. Such variations are not to be regarded as a departure fromthe spirit and scope of the present disclosure.

1. An augmented reality head-up display system for displaying graphicsupon a windscreen of a vehicle, the augmented reality head-up displaysystem comprising: one or more non-visual object detection sensors todetect objects in an environment surrounding the vehicle; one or morecameras that capture image data of the environment surrounding thevehicle; a graphic projection device for generating images upon thewindscreen of the vehicle wherein the graphic projection device includesa projection device that creates an excitation light that creates theimages projected upon the windscreen; and a controller in electroniccommunication with the one or more non-visual object detection sensors,the one or more cameras, and the graphic projection device, wherein thecontroller executes instructions to: receive a plurality of detectionpoints that indicate a presence of an object from the one or morenon-visual object detection sensors and the image data from the one ormore cameras; compare the plurality of detection points with the imagedata of the environment surrounding the vehicle to identify a visuallyimperceptible object located in the environment; in response toidentifying the visually imperceptible object, determine a notificationsymbol that signifies the visually imperceptible object; and instructthe graphic projection device to generate the notification symbol uponthe windscreen of the vehicle, wherein the notification symbol isoverlaid at a position upon the windscreen where the visuallyimperceptible object would normally be visible.
 2. The augmented realityhead-up display system of claim 1, wherein the controller executesinstructions to: determine a rate of approach towards the visuallyimperceptible object by the vehicle; and adjust at least one visualparameter of the notification symbol based on the rate of approachtowards the visually imperceptible object by the vehicle.
 3. Theaugmented reality head-up display system of claim 2, wherein the visualparameter is an overall size of the notification symbol, and wherein theoverall size of the notification symbol increases as the vehicle travelstowards the visually imperceptible object and the overall size of thenotification symbol decreases as the vehicle travels away from thevisually imperceptible object.
 4. The augmented reality head-up displaysystem of claim 1, wherein the visual parameter is a color of thenotification symbol.
 5. The augmented reality head-up display system ofclaim 1, wherein the controller executes instructions to: receiveperception data indicative of human vision relative to camera vision;calculate a driver's field of view based on the perception data; andidentify the visually imperceptible object based on the perception data.6. The augmented reality head-up display system of claim 5, wherein theperception data includes one or more of the following: ambient lightingconditions, sun position, headlamp coverage, and weather input.
 7. Theaugmented reality head-up display system of claim 1, wherein identifyingthe visually imperceptible object is determined based on driver visioncapability.
 8. The augmented reality head-up display system of claim 1,wherein the one or more non-visual object detection sensors include oneor more of the following: a radar, LiDAR, and one or more infraredsensors.
 9. The augmented reality head-up display system of claim 1,wherein the controller identifies the visually imperceptible object bydetermining a luminance contrast ratio between the plurality ofdetection points and the image data of the environment surrounding thevehicle.
 10. The augmented reality head-up display system of claim 1,wherein the controller instructs the graphic projection device of theaugmented reality head-up display system to project cluster contentinformation within a near-field image plane of the windscreen.
 11. Theaugmented reality head-up display system of claim 10, whereininformation regarding the notification symbol displayed within thenear-field image plane.
 12. The augmented reality head-up display systemof claim 1, wherein the controller instructs the graphic projectiondevice to project the notification symbol within a far-field image planeof the windscreen.
 13. The augmented reality head-up display system ofclaim 1, wherein the notification symbol is one of the following: acaution symbol, a vehicle icon, an animal icon, and a pedestrian icon.14. The augmented reality head-up display system of claim 1, wherein thevisually imperceptible object is one of the following: roadway signage,roadway markings, another vehicle, a pedestrian, a bicyclist, a trafficincident, and road conditions that require attention.
 15. A method fordisplaying graphics upon a windscreen of a vehicle, the methodcomprising: receiving, by a controller, a plurality of detection pointsthat indicate a presence of an object from one or more non-visual objectdetection sensors and image data from one or more cameras; comparing theplurality of detection points with the image data of an environmentsurrounding the vehicle to identify a visually imperceptible objectlocated in the environment; in response to identifying the visuallyimperceptible object, determining a notification symbol that signifiesthe visually imperceptible object; and instructing, by the controller, agraphic projection device to generate the notification symbol upon thewindscreen of the vehicle, wherein the notification symbol is overlaidat a position upon the windscreen where the visually imperceptibleobject would normally be visible, wherein the graphic projection deviceincludes a projection device that creates an excitation light thatcreates the images projected upon the windscreen.
 16. The method ofclaim 15, further comprising: determining a rate of approach towards thevisually imperceptible object by the vehicle; and adjusting at least onevisual parameter of the notification symbol based on the rate ofapproach towards the visually imperceptible object by the vehicle. 17.The method of claim 15, further comprising: receiving perception dataindicative of human vision relative to camera vision; calculating adriver's field of view based on the perception data; and identifying thevisually imperceptible object based on the perception data.
 18. Anaugmented reality head-up display system for displaying graphics upon awindscreen of a vehicle, the augmented reality head-up display systemcomprising: one or more non-visual object detection sensors to detectobjects in an environment surrounding the vehicle; one or more camerasthat capture image data of the environment surrounding the vehicle; agraphic projection device for generating images upon the windscreen ofthe vehicle, wherein the graphic projection device includes a projectiondevice that creates an excitation light that creates the imagesprojected upon the windscreen; and a controller in electroniccommunication with the one or more non-visual object detection sensors,the one or more cameras, and the graphic projection device, wherein thecontroller executes instructions to: receive a plurality of detectionpoints that indicate a presence of an object from the one or morenon-visual object detection sensors; compare the plurality of detectionpoints with the image data of the environment surrounding the vehicle toidentify a visually imperceptible object located in the environment; inresponse to identifying the visually imperceptible object, determine anotification symbol that signifies the visually imperceptible object;instruct the graphic projection device to generate the notificationsymbol upon the windscreen of the vehicle, wherein the notificationsymbol is overlaid at a position upon the windscreen where the visuallyimperceptible object would normally be visible; determine a rate ofapproach towards the visually imperceptible object by the vehicle; andadjust at least one visual parameter of the notification symbol based onthe rate of approach towards the visually imperceptible object by thevehicle.
 19. The augmented reality head-up display system of claim 18,wherein the visual parameter is an overall size of the notificationsymbol, and wherein the overall size of the notification symbolincreases as the vehicle travels towards the visually imperceptibleobject and the overall size of the notification symbol decreases as thevehicle travels away from the visually imperceptible object.
 20. Theaugmented reality head-up display system of claim 18, wherein thecontroller executes instructions to: receive perception data indicativeof human vision relative to camera vision; calculate a driver's field ofview based on the perception data; and identify the visuallyimperceptible object based on the perception data.